Bearing structure

ABSTRACT

A bearing structure comprises a sphere, a boarding structure and a plurality of adjusting elements. The boarding structure has an opening. The opening is abutted against a perimeter of the diameter of the sphere. The adjusting elements are disposed on two opposite edge of the boarding structure respectively for adjusting the elasticity between the sphere and the boarding structure. The sphere rotates on the boarding structure freely so that a bearing structure with a universal rotating angle is formed.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a bearing structure, and moreparticularly, to a bearing structure with a universal rotating angle,which can change angles freely and is applied to a supporting shelf.

2. Description of the Related Art

Referring to FIG. 1, which is a conventional bearing structure,including a sphere 1 a, a bottom seat 2 a, a bearing seat 3 a and aplurality of screws 4 a. The sphere 1 a has an end connected to a shaft1 a. The bottom seat 2 a has a first groove 21 a. The first groove 21 adefines a through hole 211 a at a central part thereof for receiving thesphere 1 a. The shaft 11 a penetrates the through hole 211 a. Thebearing seat 3 a defines a second groove 31 a at a bottom surfacethereof. The second groove 31 a is opposite to the first groove 21 a sothat the first groove 21 a and the second groove 31 a form a receivingspace for mounting onto the sphere la tightly. The screws connect thebottom seat 2 a and the bearing seat 3 a together respectively. Therebythe bearing seat 3 a can rotate on the sphere 1 a freely.

However, the rotating angle of the bearing seat 3 a is still restrictedto the through hole 211 a so that the bearing seat 3 a cannot rotatearound a large area. If the conventional bearing structure is improvedby providing a bearing structure with a universal rotating angle, theuser's needs will be meet.

SUMMARY OF THE INVENTION

It is therefore a principal object of the present invention to provide abearing structure that can be applied to a supporting shelf. The bearingstructure provides a wide range of rotating angles for the supportingshelf. The present invention has been accomplished to eliminate theaforesaid problem.

To achieve the above object, one feature of the present invention is toprovide a bearing structure, including a sphere; a boarding structurehaving an opening abutted against a perimeter of the diameter of thesphere on a perimeter thereof; and a plurality of adjusting elementsdisposed on two opposite edges of the boarding structure respectivelyfor adjusting the elasticity between the sphere and the boardingstructure, whereby the sphere can rotate on the boarding structurefreely so that it forms a bearing structure with a universal rotatingangle.

To provide a further understanding of the invention, the followingdetailed description illustrates embodiments and examples of theinvention, this detailed description being provided only forillustrating the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings included herein provide a further understanding of theinvention. A brief introduction of the drawings is as follows:

FIG. 1 is a cross-sectional view of a conventional bearing structure.

FIG. 2 is a decomposition view of the preferred embodiment of thepresent invention.

FIG. 3 is a composition view of the preferred embodiment of the presentinvention.

FIG. 4 is a cross-sectional view of the preferred embodiment of thepresent invention.

FIG. 5 is a composition view of the preferred embodiment of the presentinvention in use.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Referring now to the drawings wherein the showings are for the purposesof illustrating the preferred embodiments of the present invention only,and not for the purposes of limiting the same.

Referring to FIGS. 1 to 4, the present invention provides a bearingstructure including a sphere 1, a boarding structure 2 and a pluralityof adjusting elements 3.

The sphere 1 provides a pivotally connecting function for the bearingstructure.

The boarding structure 2 has an opening 27. A perimeter of the opening27 is abutted against a perimeter of the diameter of the sphere 1. Theboarding structure 2 further comprises two clipping elements 21 and 22,two covering elements 23 and 24, and two tightening elements 25 and 26.

The two clipping elements are a first clipping element 21 and a secondclipping element 22. A side edge of the first clipping element 21 and aside edge of the second clipping element 22 have a first clippingportion 213 and a second clipping portion 223 respectively. The firstclipping portion 213 and the second clipping portion 223 are fitted tothe outside surface of the sphere 1 respectively. The first clippingportion 213 and the second clipping portion 223 are clipped opposite onthe perimeter of the diameter of the sphere 1.

The two covering elements are a first covering element 23 and a secondcovering element 24. The first covering element 23 is placed on a firsttop surface 211 of the first clipping element 21 and on a second topsurface 221 of the second clipping element 22. The second coveringelement 24 is placed on a first bottom surface 212 of the first clippingelement 21 and on a second bottom surface 222 of the second clippingelement 22. The first covering element 23 and the second coveringelement 24 are disposed around the outside edge of the sphere 1. Thefirst covering element 23 and the second covering element 24 have afirst covering portion 231 and a second covering element 241respectively. The first covering portion 231 and the second coveringelement 241 are fitted to the outside surface of the sphere 1.

The two tightening elements are a first tightening element 25 and asecond tightening element 26. The first tightening element 25 and thesecond tightening element 26 abut against a first side edge 214 of thefirst clipping element 21 and a second side edge 224 of the secondclipping element 22 respectively. A third top surface 251 and a thirdbottom surface 252 of the first tightening element 25 connect to a firstside face 232 of the first covering element 23 and a second side face242 of the second covering element 24 respectively. A fourth top surface261 and a fourth bottom surface 262 of the second tightening element 26also connect to the first side face 232 of the first covering element 23and the second side face 242 of the second covering element 24respectively. The first tightening element 25 defines a plurality ofpenetrated holes 253 on a side edge thereof. The second tighteningelement 26 also defines a plurality of penetrated holes 263 on a sideedge thereof.

The adjusting elements 3 are disposed on two opposite edges of theboarding structure 2 respectively. Each of the adjusting elements 3 hasan end that penetrates each of the penetrated holes 253 and 263respectively and pushes the first side edge 214 of the first clippingelement 21 and the second side edge 224 of the second clipping element22 respectively as shown in FIG. 4. In this way, the first clippingportion 213 of the first clipping element 21 and the second clippingportion 223 of the second clipping element 22 are tightened and abuttedagainst the perimeter of the diameter of the sphere 1 to adjust theelasticity between the sphere 1 and the boarding structure 2. The sphere1 rotates on the boarding structure 2 freely so that it forms a bearingstructure with a universal rotating angle.

Please refer to FIG. 5, which is a composition view of the preferredembodiment of the present invention in use. The sphere 1 is furtherconnected to a shaft 4 at an end thereof and the boarding structure 2further defines a plurality of supporting rods 5 on a surface thereof,whereby a supporting shelf for supporting an object is formed.Therefore, the supporting shelf can rotate within a wide range of arotating angle.

So, the present invention has the following characteristics:

1. The sphere 1 is pivotally connected to the opening 27 of the boardingstructure 2. The perimeter of the opening 27 is abutted against theperimeter of the diameter of the sphere 1. Therefore the sphere 1 canrotate on the bearing structure 2 freely so that a bearing structurewith a universal rotating angle is formed.

2. The adjusting elements 3 are disposed on the two opposite edges ofthe boarding structure 2 respectively to adjust the elasticity betweenthe sphere 1 and the boarding structure 2. Therefore, the adjustingelements 3 provide an adjusting function for the bearing structure.

There has thus been described a new, novel and heretofore unobviousbearing structure eliminating the aforesaid problem of the prior art.Furthermore, those skilled in the art will readily appreciate that theabove description is only illustrative of specific embodiments andexamples of the invention. The invention should therefore cover variousmodifications and variations made to the herein-described structure andoperations of the invention, provided they fall within the scope of theinvention as defined in the following appended claims.

1. A bearing structure, comprising: a sphere; a boarding structure having an opening abutted against a perimeter of the diameter of the sphere on a perimeter thereof; and a plurality of adjusting elements disposed on two opposite edges of the boarding structure respectively for adjusting the elasticity between the sphere and the boarding structure, whereby the sphere rotates on the boarding structure freely so that a bearing structure with a universal rotating angle is formed.
 2. The bearing structure of claim 1, wherein the boarding structure further comprising two clipping elements clipped opposite on the perimeter of the diameter of the sphere; two covering elements placed on a top surface and a bottom surface of the two clipping elements respectively and the two covering elements disposed around an outside edge of the sphere; and two tightening elements abutted against two opposite side edge of the two clipping elements and a top surface and a bottom surface of the two tightening elements connected to two opposite side face of the two covering elements respectively.
 3. The bearing structure of claim 2, wherein each of the two clipping elements having a clipping portion on a side edge thereof and the clipping portion fitting the outside surface of the sphere.
 4. The bearing structure of claim 2, wherein each of the two covering elements having a covering portion fitting the outside surface of the sphere.
 5. The bearing structure of claim 2, wherein each of the two tightening elements define a plurality of penetrated holes on a side thereof.
 6. The bearing structure of claim 5, wherein each of the adjusting elements have an end penetrating each of the penetrated holes respectively and tightening each of the two clipping elements respectively, whereby the two clipping elements tighten opposite to the perimeter of the diameter of the sphere.
 7. The bearing structure of claim 1, wherein the sphere further connects a shaft at an end thereof and the boarding structure further defines a plurality of supporting rods on a surface thereof, whereby a supporting shelf for supporting an object is formed. 